the short answer is YES!
the long answer is as follows:
the poop on the controller, when left undisturbed for a period of about a week (2 or 3 days in hotter weather), will start to solidify as it dries out. during this process, you will notice many flies on and around the controller. THIS IS NORMAL! leave them be, they won't hurt you. the flies are actually eating the poop (in such small amounts, you won't even notice any shrinkage in the amount of poop on the controller), and as they eat, they will also poop!
there will be poop all over that mother!
now, once it's dry, start to break it off in chunks. don't throw them away! re-hydrate them by soaking them in a mixture of vinegar and water (4 parts vinegar to 1 part water). the acidity will likely dissolve the poop - this is what you want! next, add some flour to the mix. you should end up with a stinky, slightly tacky mixture that will resemble brown mud.
take the mixture and and dump it into the DVD tray of the PS3. not *onto* the tray, but right into the slot that the tray slides out of. if you have any left, use a flat head screwdriver to separate the two halves of the controller (the screws are fake - they're only meant to scare us into not improving the controller) and get the rest into there.
you have just "supercharged" your PS3!